AVG 8.5 ANTI-VIRUS PLUS FIREWALL Datasheet Page 41

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AVG 8.5 Anti-Virus © 2008 Copyright AVG Technologies CZ, s.r.o. All rights reserved.
9.
AVG Components
9.1. Anti-Virus
9.1.1. Anti-Virus Principles
The antivirus software's scanning engine scans all files and file activity
(opening/closing files, etc.) for known viruses. Any detect ed virus will be blocked from
taking any action and will t hen be cleaned or quarantined. Most antivirus software also
uses heuristic scanning, where files are scanned for typical virus characteristics, so
called viral signatures. This means that t he antivirus scanner can detect a new,
unknown virus, if the new virus contains some typical characteristics of existing
viruses.
The important feature of antivirus protection is that no known virus can run on
the computer!
Where just a single technology might fall short of detecting or identifying a virus,
Anti-Virus combines several technologies to ensure that your computer is protected
from viruses:
Scanning - searching for character strings that are characteristic of a given
virus
Heuristic analysis - dynamic emulation of the scanned objects instructions in a
virtual computer environment
Generic detection - detection of instructions characteristic of the given
virus/group of viruses
AVG is also able to analyze and detect executable applications or DLL libraries that
could be potentially unwanted within the system. We call such threats Potentially
Unwanted Programs (various kinds of spyware, adware etc.). Furthermore, AVG scans
your system registry for suspicious entries, temporary Internet files and tracking
cookies, and allows you to treat all potentially harmful items in the same way as any
other infection.
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